package zzz.Text.text5;

public class StringBuildertext2 {
    public static void main(String[] args) {
        int [] arr = {1,2,3};
        String str = arrToString(arr);
        System.out.println(str);

    }
    public static String arrToString(int[] arr){
        StringBuilder sb = new StringBuilder();
        sb.append("[");

        for (int i = 0; i <arr.length; i++) {
            if(i == arr.length-1){
                sb.append(arr[i]);
            }else {
                sb.append(arr[i]).append(",");
            }
        }
        sb.append("]");
        return sb.toString();
    }
}
